Q.

Consider the matrices P, Q and R which are 10 x 20, 20 x 30 and 30 x 40 matrices respectively. What is the minimum number of multiplications required to multiply the three matrices?

A. 18000
B. 12000
C. 24000
D. 32000
Answer» A. 18000
Explanation: the minimum number of multiplications are 18000. this is the case when the matrices are parenthesized as (p*q)*r.
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